Home / 2,872.36-3,965.76-2,208.04

Finding the Fourth Proportional to 2,872.36, 3,965.76 and 2,208.04

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Solution

The fourth proportional to 2,872.36, 3,965.76 and 2,208.04 is: 3,048.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.36 : 3,965.76 = 2,208.04 : x
  2. Step 2: Convert to fraction form
    2,872.36/3,965.76 = 2,208.04/x
  3. Step 3: Cross multiply
    2,872.36x = 3,965.76 × 2,208.04
  4. Step 4: Simplify right side
    2,872.36x = 8,756,556.71
  5. Step 5: Solve for x
    x = 8,756,556.71/2,872.36
  6. Step 6: Final answer
    x = 3,048.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.